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chemistry 3
Chemistry
2 cards
chemistry 2
Chemistry
10 cards
Cards (19)
Chemical change
Involves
making
and/or
breaking
chemical
bonds.
A
new
substance
is
made.
They are
hard
to
reverse.
Physical change
Changes the form of a substance, but not the substance itself. They are easier to reverse.
Examples of chemical/physical changes
Combusting
Melting
Neutralising
Boiling
Rusting
Diffusing
Cooking
Breathing
Respiring
Dissolving
Common observations of changes
Colour
State
Light
Temperature
Boiling the same kettle of water again and again
Physical change
Setting off a firework
Chemical change
Physical changes are easier to reverse than chemical changes
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